From 50cd54ef4e6f4279683b61417a35de7297b55b9d Mon Sep 17 00:00:00 2001 From: "brian m. carlson" Date: Wed, 2 May 2018 02:20:52 +0000 Subject: [PATCH] format-patch: make cover letters always text/plain When formatting a series of patches using --attach and --cover-letter, the cover letter lacks the closing MIME boundary, violating RFC 2046. Certain clients, such as Thunderbird, discard the message body in such a case. Since the cover letter is just one part and sending it as multipart/mixed is not very useful, always emit it as text/plain, avoiding the boundary problem altogether. Reported-by: Patrick Hemmer Signed-off-by: brian m. carlson Signed-off-by: Junio C Hamano --- builtin/log.c | 2 +- log-tree.c | 7 ++++--- log-tree.h | 3 ++- t/t4014-format-patch.sh | 9 +++++++++ 4 files changed, 16 insertions(+), 5 deletions(-) diff --git a/builtin/log.c b/builtin/log.c index 94ee177d56..dc7f5f4642 100644 --- a/builtin/log.c +++ b/builtin/log.c @@ -1019,7 +1019,7 @@ static void make_cover_letter(struct rev_info *rev, int use_stdout, open_next_file(NULL, rev->numbered_files ? NULL : "cover-letter", rev, quiet)) return; - log_write_email_headers(rev, head, &pp.after_subject, &need_8bit_cte); + log_write_email_headers(rev, head, &pp.after_subject, &need_8bit_cte, 0); for (i = 0; !need_8bit_cte && i < nr; i++) { const char *buf = get_commit_buffer(list[i], NULL); diff --git a/log-tree.c b/log-tree.c index bdf23c5f7b..b00a56f57e 100644 --- a/log-tree.c +++ b/log-tree.c @@ -362,7 +362,8 @@ void fmt_output_email_subject(struct strbuf *sb, struct rev_info *opt) void log_write_email_headers(struct rev_info *opt, struct commit *commit, const char **extra_headers_p, - int *need_8bit_cte_p) + int *need_8bit_cte_p, + int maybe_multipart) { const char *extra_headers = opt->extra_headers; const char *name = oid_to_hex(opt->zero_commit ? @@ -385,7 +386,7 @@ void log_write_email_headers(struct rev_info *opt, struct commit *commit, opt->ref_message_ids->items[i].string); graph_show_oneline(opt->graph); } - if (opt->mime_boundary) { + if (opt->mime_boundary && maybe_multipart) { static char subject_buffer[1024]; static char buffer[1024]; struct strbuf filename = STRBUF_INIT; @@ -610,7 +611,7 @@ void show_log(struct rev_info *opt) if (cmit_fmt_is_mail(opt->commit_format)) { log_write_email_headers(opt, commit, &extra_headers, - &ctx.need_8bit_cte); + &ctx.need_8bit_cte, 1); ctx.rev = opt; ctx.print_email_subject = 1; } else if (opt->commit_format != CMIT_FMT_USERFORMAT) { diff --git a/log-tree.h b/log-tree.h index deba035187..e668628074 100644 --- a/log-tree.h +++ b/log-tree.h @@ -27,7 +27,8 @@ void format_decorations_extended(struct strbuf *sb, const struct commit *commit, void show_decorations(struct rev_info *opt, struct commit *commit); void log_write_email_headers(struct rev_info *opt, struct commit *commit, const char **extra_headers_p, - int *need_8bit_cte_p); + int *need_8bit_cte_p, + int maybe_multipart); void load_ref_decorations(struct decoration_filter *filter, int flags); #define FORMAT_PATCH_NAME_MAX 64 diff --git a/t/t4014-format-patch.sh b/t/t4014-format-patch.sh index 482112ca33..6ea08fd5e9 100755 --- a/t/t4014-format-patch.sh +++ b/t/t4014-format-patch.sh @@ -1661,6 +1661,15 @@ test_expect_success 'format-patch --base with --attach' ' test_write_lines 1 2 >expect && test_cmp expect actual ' +test_expect_success 'format-patch --attach cover-letter only is non-multipart' ' + test_when_finished "rm -fr patches" && + git format-patch -o patches --cover-letter --attach=mimemime --base=HEAD~ -1 && + ! egrep "^--+mimemime" patches/0000*.patch && + egrep "^--+mimemime$" patches/0001*.patch >output && + test_line_count = 2 output && + egrep "^--+mimemime--$" patches/0001*.patch >output && + test_line_count = 1 output +' test_expect_success 'format-patch --pretty=mboxrd' ' sp=" " &&